1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __PROBE_FILE_H
3#define __PROBE_FILE_H
4
5#include "probe-event.h"
6
7struct strlist;
8struct strfilter;
9
10/* Cache of probe definitions */
11struct probe_cache_entry {
12	struct list_head	node;
13	bool			sdt;
14	struct perf_probe_event pev;
15	char			*spev;
16	struct strlist		*tevlist;
17};
18
19struct probe_cache {
20	int	fd;
21	struct list_head entries;
22};
23
24enum probe_type {
25	PROBE_TYPE_U = 0,
26	PROBE_TYPE_S,
27	PROBE_TYPE_X,
28	PROBE_TYPE_STRING,
29	PROBE_TYPE_BITFIELD,
30	PROBE_TYPE_END,
31};
32
33#define PF_FL_UPROBE	1
34#define PF_FL_RW	2
35#define for_each_probe_cache_entry(entry, pcache) \
36	list_for_each_entry(entry, &pcache->entries, node)
37
38/* probe-file.c depends on libelf */
39#ifdef HAVE_LIBELF_SUPPORT
40int open_trace_file(const char *trace_file, bool readwrite);
41int probe_file__open(int flag);
42int probe_file__open_both(int *kfd, int *ufd, int flag);
43struct strlist *probe_file__get_namelist(int fd);
44struct strlist *probe_file__get_rawlist(int fd);
45int probe_file__add_event(int fd, struct probe_trace_event *tev);
46
47int probe_file__del_events(int fd, struct strfilter *filter);
48int probe_file__get_events(int fd, struct strfilter *filter,
49				  struct strlist *plist);
50int probe_file__del_strlist(int fd, struct strlist *namelist);
51
52int probe_cache_entry__get_event(struct probe_cache_entry *entry,
53				 struct probe_trace_event **tevs);
54
55struct probe_cache *probe_cache__new(const char *target, struct nsinfo *nsi);
56int probe_cache__add_entry(struct probe_cache *pcache,
57			   struct perf_probe_event *pev,
58			   struct probe_trace_event *tevs, int ntevs);
59int probe_cache__scan_sdt(struct probe_cache *pcache, const char *pathname);
60int probe_cache__commit(struct probe_cache *pcache);
61void probe_cache__purge(struct probe_cache *pcache);
62void probe_cache__delete(struct probe_cache *pcache);
63int probe_cache__filter_purge(struct probe_cache *pcache,
64			      struct strfilter *filter);
65struct probe_cache_entry *probe_cache__find(struct probe_cache *pcache,
66					    struct perf_probe_event *pev);
67struct probe_cache_entry *probe_cache__find_by_name(struct probe_cache *pcache,
68					const char *group, const char *event);
69int probe_cache__show_all_caches(struct strfilter *filter);
70bool probe_type_is_available(enum probe_type type);
71bool kretprobe_offset_is_supported(void);
72bool uprobe_ref_ctr_is_supported(void);
73bool user_access_is_supported(void);
74bool multiprobe_event_is_supported(void);
75bool immediate_value_is_supported(void);
76#else	/* ! HAVE_LIBELF_SUPPORT */
77static inline struct probe_cache *probe_cache__new(const char *tgt __maybe_unused, struct nsinfo *nsi __maybe_unused)
78{
79	return NULL;
80}
81#define probe_cache__delete(pcache) do {} while (0)
82#endif
83#endif
84